🅿🅷🆈🆂🅸🅲🆂 🅴🆇🅰🅼 🅵🅾🆁 1st" 🅲🅻🅰🆂🆂 🅾🅵 🆂🅴🅲🅾🅽🅳🅰🆁🆈 2019-2020 CHAPTER 7 HEAT TRANSFER